When I'm anxious or troubled, I have vivid nightmares and remember them. Otherwise, I don't usually remember my dreams. Two nights ago, there was a car crash with a mangled bloody corpse sprawled in the front seat -- a lot of my nightmares are about the aftermath of car wrecks (I don't have recurring dreams so much as recurring settings or types of events in which the details change from dream to dream) -- and a weird trio of blond children wearing angular plaid suits and old-fashioned haircuts who were terrifying for some reason.
Last night I dreamed that J and I encountered a tiger and her cubs on a hiking trail. J ran right by her, but she blocked my path. I managed to intimidate her and keep her from attacking me. J took one of the cubs home. He was holding it in his arms, and it was beautiful and vivid with pale blue eyes. I kept telling him that he had to take it back to its mother, but he ignored me.
I don't enjoy being stressed out, and I wouldn't exactly say that I enjoy having nightmares, but there's something about them I like. They're maybe instructive, at the very least diverting.